A very simple idea and great for the start of a class year or course.
Give students strips of paper, scotch tape and markers.
Get the students to go around the classroom and label everything, everywhere! Stapler, ceiling, door, calendar, teacher’s desk etc …. it will take a good part of a class.
After that, as you are teaching, students will learn English passively as the objects are brought alive by the language labels.
English Is Everywhere,